Sanctuary AI Phoenix vs Unitree Robotics R1
The Unitree Robotics R1 costs $4,900 new; the Sanctuary AI Phoenix has no public price yet. The Phoenix is taller (5'7" vs 4'0"). Full verified comparison below, in your selected currency and units.
 Sanctuary AIPhoenix |  Unitree RoboticsR1 | |
|---|---|---|
| Maker | Sanctuary AI | Unitree Robotics |
| Form | Wheeled | Bipedal |
| Tier | Research | Hobbyist |
| Availability | Announced | Shipping |
| New price | — | $4,900 |
| Est. used (modeled) | — | $2,293–$2,803 |
| Height | 5'7" | 4'0" |
| Weight | 154 lb | 64 lb |
| DoF | — | 26 |
| Debut | 2023 | 2025 |
| Perfect for | Research, Education | Education, Hobby |
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Frequently asked
Is the Sanctuary AI Phoenix or the Unitree Robotics R1 cheaper?
Only one of the two has a published price, so a like-for-like price comparison isn't possible yet.
Which is bigger, the Phoenix or the R1?
Sanctuary AI Phoenix (5'7" / 1.7 m) is the larger of the two on this measure.
Sanctuary AI Phoenix vs Unitree Robotics R1: which should you choose?
Both are humanoid robots. The Phoenix has a catalog status of announced; current purchasing availability is unverified. For R1 (R1 Air), our US evidence records online checkout through Unitree Robotics: in stock when checked on 2026-09-30. Confirm current stock and delivery terms with the seller, and compare each model's verified specs, source notes, and modeled used values before choosing.
More comparisons
Used-value figures are clearly-labeled placeholder estimates from a tier-rate model — not data-backed appraisals. Specs and prices are verified against each manufacturer. How we value → · Build your own comparison → · What a used robot is worth → · All humanoid robots → · What humanoid robots cost →